Client results and product builds
See our work.
Connecting campaigns to enrollment quality.
Conversion tracking, member recognition and website personalization for a benefits nonprofit enrolling new members.
Same ad account · 11 weeks
Reported cost per lead.
Historical campaign reporting. These figures are not cost per verified new member.
55%
lower reported cost per lead
$17.24 $11.38
Same monthly budget
More case studies.
Building a product and its search audience
NJ Landlord Forms: AI-assisted documents, payments and a repeatable search process. An owned venture, from app launch to its first SEO-driven sale.
Read case studyMeasuring a conversational acquisition test
Campaign strategy, creative testing and booking measurement around an existing AI chatbot. Delivered through an advanced chatbot technology company.
Read case studyConnecting conversations to marketing results
Connecting offer clicks to the ads and posts that started the conversation, then using the findings to guide spending. Delivered through an advanced chatbot technology company.
Read case studyClient names are withheld where permission to publish has not been granted.
Find the problem. Make the change.
We work with teams that are running marketing but need a clearer connection between the money they spend and the customers they bring in. We investigate the gaps, implement the work and help the team decide what to do next.
A repeatable process
Check the numbers and look for patterns.
Decide what to investigate or test.
Use the result to guide the next review.
Measurement and reporting
Start with the business question. Connect the campaign, website and customer data needed to answer it, and check that the numbers mean what your team thinks they mean.
Dashboards and decision rules
Agree on what to review each week and each month. Document the signals to investigate, the actions to consider and when someone needs to approve a decision.
Paid media and testing
Paid search and social, programmatic media partners and lead-buying programs. We connect campaign decisions to what happens after the lead comes in, and help steer the creative and website changes needed to improve results.
Websites and conversion
Find where people drop out and improve the pages and forms that help them take the next step.
AI skills, automations and training
Custom GPTs, Claude skills, reporting automations and practical training to help small businesses run their marketing with AI. We build around your workflow and teach your team how to use it.
Custom tools and integrations
Build tools your existing software does not provide: customer-facing AI applications, internal workflows, API connections, databases, payments and email. We scope the build around the task it needs to accomplish.
Explore capabilities and platforms Explore Lagrange Systems Explore training
AI workflows and custom builds
Tools that fit the way your team works.
We build reporting workflows, custom AI assistants and connected tools for the work your team repeats. That can mean bringing campaign data into one place, preparing creative reviews or building an application your customers use.
Automate reporting
Spend less time pulling numbers together. Build a regular report around the decisions your team needs to make.
Build custom AI tools
Custom GPTs, Claude skills or another tool that fits your team. Build in your process: what to check, what the findings mean and what to consider next.
Train your team
Learn how to run the process, check AI’s output and know when to ask for help. Keep the instructions and the reasons behind them.
Ways to work together.
Start with the problem you need to solve. We can diagnose a measurement issue, implement a defined project or work with your team on ongoing improvements. The scope and price are agreed before work starts.
Have a specific project in mind?
Build or improve the system
Build or repair tracking, dashboards, website experiences, AI workflows and custom tools. We agree on the work and price first, and document how to use what we build. The full diagnostic fee credits toward a build signed within 60 days of the readout.
Keep improving together
Ongoing work on campaigns, your website and reporting. We agree on responsibilities, schedule and pricing separately from the measurement retainer.
Every project includes an agreed scope, price and handoff. Ongoing work is a separate agreement.
Need to check your measurement first?
These options cover tracking and reporting. Custom builds and campaign work are scoped separately.
Measurement health check
Find out whether your tracking and reports are reliable. Get a prioritized list of issues and a walkthrough of what to fix.
- GA4 and GTM findings, ranked by what they cost you
- A prioritized repair plan
- A 45-minute walkthrough with whoever owns the fixes
Full measurement audit
Get the health check plus a written plan your team or agency can implement, including campaign tagging rules and an assessment of the cost of each issue.
- Everything in the health check
- UTM and attribution specification, written
- Cost of inaction, quantified per finding
- Walkthrough with the team that owns the fixes
Measurement retainer
Keep tags, events and campaign tracking working as your website changes. Get a monthly summary of checks and issues. Campaign management, tests and integrations are scoped separately.
- Tags, events and containers watched as the site changes
- Regular checks for missing or broken tracking
- The monthly one-pager: what we checked, what we caught
- Your team trained on the parts of the measurement they own
We start with the problem you came to solve.
Sometimes that work reveals something else that needs attention: missing tracking, disconnected data, or no clear process for using it.
We help you decide what’s worth fixing, then build a process your team can use to move forward.
Big-brand experience. A hands-on approach.
Daryl Hatfield leads Lagrange Studios. He’s worked in digital marketing since around 2007, helping build an early social media strategy for a major sports organization. His experience spans early-stage startups, venture-backed companies, nonprofits and established organizations. He’s built marketing functions in finance and health tech, managed multi-million-dollar annual media budgets and launched ventures of his own.
Small teams often need someone who can work across the gaps: build the website, connect the data, launch the campaign and make sense of the results. Daryl brings experience from larger organizations alongside the practical work of building a business with limited resources. He helps figure out what needs attention first, then gets involved in the work.
We build and operate tools, too.
Our own products put the same skills to work beyond client marketing: connecting data, building useful software and handling what happens after someone signs up. They show the kinds of systems we can build for your business.
LOOT
An early financial-tools product for creators, with API connections bringing data into one platform. Currently a live MVP.
Visit LOOTNJ Landlord Forms
An AI-assisted document service built with a database, Stripe payments and Resend email. The work connects content, document generation and the purchase experience.
Read the build storyWhat Should I Read Next
An AI-powered recommendation tool that turns a reader’s interests, goals and available time into personalized book suggestions.
Visit the siteFAQs
What’s the difference between a health check and an audit?
The health check identifies tracking issues and prioritizes repairs. The full audit adds written campaign-tagging and attribution specifications your team or agency can build from, plus an assessment of the cost of leaving issues unresolved.
Do you also manage campaigns and build websites?
Yes. We work on paid media, landing pages, testing and marketing workflows. Measurement comes first so the data can inform that work.
Can you work with our agency?
Yes. We can check the measurement your agency relies on and give them a clear repair plan. You do not need to replace your agency.
What access do you need?
Usually GA4 and Google Tag Manager access, read access to your ad accounts, and relevant customer records. We agree on the scope first. The audit itself does not change your accounts.
How does a project start?
Tell us what you need. We reply within one business day and provide a proposed scope within two. It explains the work, price and deliverables. You decide whether to proceed.
How long is the measurement retainer?
Three-month minimum, then month to month with 30 days’ notice. It covers measurement maintenance; campaign management and other ongoing work are scoped separately.
LET’S TALK
Let’s figure out what your business needs.
Tell us what you need and the tools your team uses. We reply within one business day and send a proposal or training plan within two.
Prefer email? hello@lagrangestudios.co